A house in Ushaw Moor in County Durham still had an outside toilet when a mate of mine bought it in the early 1990s.
He used to keep a stick beside it in the winter to literally break the ice before toileting.
The 'soil' from some toilets was taken away via a trap door in the wall of the yard.
You can still see the now blanked off trap doors in some of the back lanes around here.
Most houses had two, one at close to ground level for the toilet, and one set into the wall at about shoulder level where the coalman would heave the bags of coal off the truck.
Who'd have thought there would be so much social history in a brick wall?